mirrors/cdt
1
0
Fork 0
mirror of https://github.com/eclipse-cdt/cdt synced 2025-04-29 19:45:01 +02:00
Code Issues Wiki Activity

Added new utility class - SWTUtil.

Browse source
This commit is contained in:
Mikhail Khodjaiants 2002-12-19 19:18:38 +00:00
parent 963d4de52b
commit 5ccf0b609f
3 changed files with 112 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
debug/org.eclipse.cdt.debug.ui/ChangeLog
View file

@ -1,3 +1,8 @@
2002-12-19 Mikhail Khodjaiants
Added new utility class - SWTUtil
* SWTUtil.java
* AttachSourceLocationBlock.java
2002-12-19 Mikhail Khodjaiants
Added new utility class - PixelConverter
* PixelCoverter.java

103
debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/SWTUtil.java Normal file
View file

@ -0,0 +1,103 @@
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
package org.eclipse.cdt.debug.internal.ui;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.DragSource;
import org.eclipse.swt.dnd.DropTarget;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Caret;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Widget;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.util.Assert;
/**
* Utility class to simplify access to some SWT resources.
*/
public class SWTUtil
{
/**
* Returns the standard display to be used. The method first checks, if
* the thread calling this method has an associated disaply. If so, this
* display is returned. Otherwise the method returns the default display.
*/
public static Display getStandardDisplay()
{
Display display;
display = Display.getCurrent();
if ( display == null )
display = Display.getDefault();
return display;
}
/**
* Returns the shell for the given widget. If the widget doesn't represent
* a SWT object that manage a shell, <code>null</code> is returned.
*
* @return the shell for the given widget
*/
public static Shell getShell( Widget widget )
{
if ( widget instanceof Control )
return ((Control) widget).getShell();
if ( widget instanceof Caret )
return ((Caret) widget).getParent().getShell();
if ( widget instanceof DragSource )
return ((DragSource) widget).getControl().getShell();
if ( widget instanceof DropTarget )
return ((DropTarget) widget).getControl().getShell();
if ( widget instanceof Menu )
return ((Menu) widget).getParent().getShell();
if ( widget instanceof ScrollBar )
return ((ScrollBar) widget).getParent().getShell();
return null;
}
/**
* Returns a width hint for a button control.
*/
public static int getButtonWidthHint( Button button )
{
PixelConverter converter = new PixelConverter( button );
int widthHint = converter.convertHorizontalDLUsToPixels( IDialogConstants.BUTTON_WIDTH );
return Math.max( widthHint, button.computeSize( SWT.DEFAULT, SWT.DEFAULT, true ).x );
}
/**
* Returns a height hint for a button control.
*/
public static int getButtonHeigthHint( Button button )
{
PixelConverter converter = new PixelConverter( button );
return converter.convertVerticalDLUsToPixels( IDialogConstants.BUTTON_HEIGHT );
}
/**
* Sets width and height hint for the button control.
* <b>Note:</b> This is a NOP if the button's layout data is not
* an instance of <code>GridData</code>.
*
* @param the button for which to set the dimension hint
*/
public static void setButtonDimensionHint( Button button )
{
Assert.isNotNull( button );
Object gd = button.getLayoutData();
if ( gd instanceof GridData )
{
((GridData) gd).heightHint = getButtonHeigthHint( button );
((GridData) gd).widthHint = getButtonWidthHint( button );
}
}
}

10
debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/ui/sourcelookup/AttachSourceLocationBlock.java
View file

@ -6,8 +6,8 @@
package org.eclipse.cdt.debug.ui.sourcelookup;
import org.eclipse.cdt.debug.internal.ui.PixelConverter;
import org.eclipse.cdt.debug.internal.ui.SWTUtil;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
@ -93,7 +93,7 @@ public class AttachSourceLocationBlock
composite.setLayoutData( data );
fLocationText = new Text( composite, SWT.SINGLE | SWT.BORDER );
fLocationText.setLayoutData( new GridData( GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL ) );
Button button = createButton( composite, "&Browse...", converter );
Button button = createButton( composite, "&Browse..." );
button.addSelectionListener( new SelectionAdapter()
{
/* (non-Javadoc)
@ -148,15 +148,13 @@ public class AttachSourceLocationBlock
fAssociationText.setText( "" );
}
protected Button createButton( Composite parent, String label, PixelConverter pc )
protected Button createButton( Composite parent, String label )
{
Button button = new Button( parent, SWT.PUSH );
button.setText( label );
GridData data = new GridData( GridData.END );
data.heightHint = pc.convertVerticalDLUsToPixels( IDialogConstants.BUTTON_HEIGHT );
int widthHint = pc.convertHorizontalDLUsToPixels( IDialogConstants.BUTTON_WIDTH );
data.widthHint = Math.max( widthHint, button.computeSize( SWT.DEFAULT, SWT.DEFAULT, true ).x );
button.setLayoutData( data );
SWTUtil.setButtonDimensionHint( button );
button.setFont( parent.getFont() );
return button;